Product Certification - Emerson Rosemount 935 Reference Manual

Technical description
May 2023
standard for smart instrumentation, and the majority of smart field devices installed in
plants worldwide are HART-enabled.
HART technology is easy to use and very reliable.
Through the HART connection, the Rosemount 935 is able to perform:
• Receiver setup
• Receiver troubleshooting
• Receiver health and status
For additional settings and trouble shooting use the software on the product web page.
HART communication can be connected on the 0–20 mA line or through the IS connection,
with a standard handheld unit loaded with the host software and attached by a special
harness.
3.3.10 Modbus RS-485
For more advanced communications, the Rosemount 935 has a RS-485 Modbus-compatible
output that provides data communication from a network (up to 247 detectors) to a
host computer or universal controller for central monitoring. This feature enables easy
maintenance, with local and remote diagnostic tools.
3.3.11 Tilt mount
The newly designed stainless steel tilt mount provides a smaller installation footprint
that can conform to limited space constraints, while the sturdy construction maintains
alignment even with constant vibration. The improved X and Y axis worm-gear adjustments
provide quick and easy alignment for installation and maintenance procedures.
3.4

Product certification

3.4.1 ATEX, IECEx
The Rosemount 935 is ATEX approved per SIRA 16ATEX1224X and IECEx per IECEx SIR
16.0075X per:
This product is suitable for use in hazardous zones 1 and 2 with IIB+H
present, and zones 21 and 22 with IIIC combustible dust types.
3.4.2 UKCA
The Rosemount 935 is UK CA approved per CSAE 21UKEX1173X:
• Ex II 2(2)G D
Ex db eb ib [ib Gb] IIB+H2 T4 Gb
Ex tb [ib Db] IIIC T135 °C Db
• T
Ambient
3.4.3 FM/FMC
The Rosemount 935 is approved to FM/FMC Explosion Proof per:
• Class I, Div. 1 Group B, C and D, T6 –58 °F/–50 °C ≤ T
12
–55 °C to +65 °C
Reference Manual
00809-0100-4035
group vapors
2
≤ 149 °F/65 °C
a
Emerson.com/Rosemount